Tsubasa Ichiyama

Ichiyama is the only man in the all-time Japanese top 10 for both half marathon and marathon, running his 2:06:00 best to finish in the top 10 at the 2025 Tokyo Marathon weeks after winning the National Corporate Half Marathon title. A graduate of Chuo Gakuin University, he lives in Saitama. Coached by Koji Ueoka.